CN1283036C - Current rectifier assembly for rotating electrical machines, in particular motor vehicle alternator - Google Patents
Current rectifier assembly for rotating electrical machines, in particular motor vehicle alternator Download PDFInfo
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- CN1283036C CN1283036C CNB028023927A CN02802392A CN1283036C CN 1283036 C CN1283036 C CN 1283036C CN B028023927 A CNB028023927 A CN B028023927A CN 02802392 A CN02802392 A CN 02802392A CN 1283036 C CN1283036 C CN 1283036C
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- rectifying device
- cooling fluid
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- machine
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- 238000001816 cooling Methods 0.000 claims abstract description 23
- 230000008093 supporting effect Effects 0.000 claims description 47
- 239000012809 cooling fluid Substances 0.000 claims description 35
- 230000000694 effects Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 239000002826 coolant Substances 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 210000000078 claw Anatomy 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000005457 optimization Methods 0.000 description 4
- 229920003266 Leaf® Polymers 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- -1 and be perforate Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
- H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
- H02K11/05—Rectifiers associated with casings, enclosures or brackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Synchronous Machinery (AREA)
Abstract
The invention concerns a current rectifier assembly for rotating electrical machines comprising a rear bearing, including a plurality of positive diodes (2) supported on a plate-like support (1), a plurality of negative diodes (7) supported by the rear bearing (6) of the machine, a device connecting (9) the positive and the negative diodes and means for generating a forced axial flow of a coolant, the support (1) of the diodes bearing cooling fins (4) extending in said axial flow (FI) of coolant in the radial direction of the machine. The assembly is characterised in that it comprises means for mixed cooling of the negative diode support by convection or conduction. The invention is useful for motor vehicle alternators.
Description
Technical field
[01] this relates to the cooling capacity of current rectifier assembly, described current rectifier assembly is used to comprise a stator and an electric rotating machine that is installed in the rotor in the stator, described current rectifier assembly is the current rectifier assembly of AC generator for vehicle particularly, this device comprises a plurality of positive diodes by a plate shape seat supports, a plurality of negative diodes that support by a plate shape bearing, as the back supporting of machine rotors bearing, the generating means that forces stream of connector that is electrically connected positive negative diode and a kind of cooling fluid along the machine axial flow; Positive diode seating plane has some cooled blades to the front surface of machine shaft, in the axial flow of these cooled blade cooling liquids along machine extension radially.What known is, rotor is installed in the forward and backward supporting by its axle rotation, and for this reason, there is a ball bearing at the center of each supporting, is used to rotate the axle that rotor is installed.The shape of supporting makes it have stator in their periphery, more precisely stator body.Supporting is connected to each other, so that form a shell, above-mentioned rotor and stator are positioned at wherein.The back supporting has the rectifying device that is covered by a cover that is fixed in the supporting of back.Bearing with the same with the supporting that is connected with ground wire be metal, and be perforate, cooling fluid such as air are passed through; The circulation of cooling fluid is connected and is positioned at the fan generation of machine with stator by at least one.These supportings are connected to each other, for example by a screw or set bolt, to form shell.
Background technology
[02] can recognize by the applicant's French Patent (FRP) 2687861 and a kind ofly can convert the alternating current that stator induces to the rectifying device of direct current for automobile consumption.This rectifying device is designed for and only guarantees by convection current, i.e. cooling by the mobile assurance positive diode bearing of fluid between radial blade, and the cooling of negative diode bearing is undertaken by conduction.
[03] shortcoming of this rectifying device is to improve cooling capacity, and it can be used in the more powerful alternating current generator, guarantees an acceptable volume simultaneously again.
Summary of the invention
[04] the objective of the invention is to overcome above-mentioned shortcoming.
[05] in order to reach this purpose, rectifying device of the present invention is characterised in that it has the mixing cooling device of the negative diode bearing that is undertaken by convection current and conduction; Described rectifying device has the device that cools off the bearing of positive diode by the radial flow F2 of a cooling fluid.
[06] according to a feature of the present invention, negative diode supports in the super thickness portion in part of upper surface after being installed in machine.
[07] according to another feature of the present invention, the side opening that cover has some cooling fluid radial flows to enter under the effect of the axial flow F1 of cooling fluid in back supporting place of negative diode bearing, the radial flow of cooling fluid passes through on the upper surface of supporting with super thickness portion that negative diode is installed, so that converge with axial flow F1.
[08] according to another feature of the present invention, super thickness portion be shaped as truncated cone shape, negative diode is installed in the upper surface of super thickness portion.
[09] according to another feature of the present invention, positive diode bearing on the edge of machine shaft, have a device that some make a part of bias current of cooling fluid axial flow F1 so that produce the radial flow F2 that passes through on the upper surface of bearing that positive diode is installed.
[10] according to another feature of the present invention, the radial flow F2 of cooling fluid is driven along the direction of machine shaft in positive diode bearing current downflow, so that converge with the axial flow F1 of cooling fluid.
[11] according to another feature of the present invention, constitute positive diode bearing cooling fluid radial flow F2 part cooling fluid axial flow the bias current device by one be located at positive diode bearing towards machine the axle the edge on parapet constitute.
[12] according to another feature of the present invention, positive diode bearing with its distance than between supporting in connector and back.
[13] according to another feature of the present invention, the relation between the heat dissipation capacity of the super thickness portion formation of dimensionally-optimised installation negative diode that can be by suitably determining super thickness portion and the load loss that these super thickness portions cause.
Description of drawings
[14] can understand the present invention and other purpose, feature, details and advantage better by description with reference to the accompanying drawings, accompanying drawing only illustrates several embodiments of the present invention, wherein:
[15]-Fig. 1 is the radially cross-sectional schematic of first embodiment of rectifying device of the present invention;
[16]-and Fig. 2 A and 2B are detail view, illustrate according to the present invention a negative diode is installed on its bearing;
[17]-Fig. 3 is the radially cross-sectional schematic of another embodiment of the present invention;
[18]-Fig. 4 A-4D illustrates three different embodiment of the radially cooled blade of rectifying device of the present invention;
[19]-Fig. 5 is the radially cross-sectional schematic of another embodiment of rectifying device of the present invention;
[20]-Fig. 6 is the stereogram of cover 12 shown in Figure 5;
[21]-Fig. 7 is the stereogram of the rectifying device of the present invention in the supporting after having cover and being installed in alternating current generator;
[22]-Fig. 8 is the stereogram of the embodiment of an alternator frame that is connected with rectifying device of the present invention and rotor.
Embodiment
[23] Fig. 1 is a rectifying device, the schematic diagram of the rectifying device of a polyphase alternator for example, and the overall structure of alternating current generator is for example as described in French Patent (FRP) 2687861 and the European patent 05515259.
[24] among Fig. 1 and 4, rectifying device comprises the bearing 1 of a plurality of positive diodes 2, and bearing 1 is a metal at this, is shaped as plate shape, and its front surface towards the rotary shaft of machine (not shown) has some cooled blades 4 that extend along this direction of principal axis.Based on aluminium, its effect is the cooling that guarantees diode to the bearing of metal at this, therefore is called positive radiator.This radiator 1 axially is positioned at after the perforate on the supporting 6 on the predetermined distance D 2 along machine, and a plurality of negative diodes 7 are installed in the back supporting 6 by cooperation.Back supporting 6 is metals, here also based on aluminium.Reference number 9 expression is positioned at the electric connector on the radiator 1, its effect be whenever align, the electrical connection 10 of negative diode 2 and 7 afterbody 11.The parallel installation of these diodes.It is to be noted, bearing is the same with supporting after the ground connection to be metal, and connector 9 is electrical insulating materials, some some local exposed be electrically connected to integrate be embedded in the electrical insulating material, exposed place is used for contacting with the afterbody of diode is local at 10 places, and is electrically connected with the outlet mutually of alternator frame.In Fig. 1,3,5, can see the place that these are exposed.In these figure, it is axial that the exposed part 10 that contacts with afterbody 11 is compared with the rotating shaft of machine, and local punching press, so that contact with afterbody 11 parts.These contact portions are parallel to each other.The afterbody of negative diode is longer than the afterbody of positive diode.Afterbody 11 is axially towards supporting opposite direction with the back.In these schematic diagrames, can also see the exposed part of fixed claw form, be fixed on by setting-in in the relevant outlet mutually of alternating current generator.
[25] rectifying device of describing is just now covered by a hollow cover 12, and cover vertical with machine shaft promptly has the inlet 14 of some a kind of cooling fluids such as air in the transverse horizontal upper wall, the side entrance 16 of some cooling fluids is arranged in its axial annular sidewall.Compare with the axle of machine, in the space of these openings between radiator and back supporting 6.Support behind cover and the metal and be connected, and be electrical insulating material, and advantageously be mouldable plastics at this.It is to be noted that the axial annular wall of cover only has the opening 16 near the back supporting, is used for guiding cooling fluid in the mode that describes below.The upper wall of cover constitutes the bottom of back supporting.
[26] rectifying device of describing just now is by a kind of mobile cooling of being forced to of cooling fluid, and cooling fluid advantageously is an air that the known fan (being shown in Fig. 8) that is rotatably connected with machine rotors produces.Back supporting has the opening that some pass through with 18 cooling fluids of representing, and opening 18 aligns substantially with opening 14 in cover 12 upper walls, and cover 12 for example supports on 6 by snapping in to be fixed on.
[27] according to a feature of the present invention, radiator 1 has an axial upwardly extending parapet 20 (but not necessarily necessary) at its radially inward edge place towards machine shaft.In all cases, radiator all has a plane domain that is used to install positive diode.This zone extends to the periphery of radiator, and is in a ratio of laterally with the axle of machine.
[28] according to another feature of the present invention, the super thickness portion 22 of truncated cone shape that back supporting 6 has Fig. 2 A and 2B to be shown in further detail in the position that each negative diode 7 is installed.The super thickness portion 22 of these truncated cone shapes on back supporting upper surface guarantees the better cooling of diode, and negative diode directly is inserted in the super thickness portion of these truncated cone shapes.In fact, to describe, obtain a kind of mixing cooling of being undertaken by convection current and conduction like this as following.It should be appreciated that radially cooled blade 4 is extended for 22 on the surface at radiator 1 below 23, until in the installation region of positive diode 2.In addition, fin 4 extends to the radially outward edge 24 of parapet 20 always.
[29] rectifier of the present invention, particularly by means of parapet 20, can obtain the form of a kind of advanced person's cooled flow, this form comprises opening 14 and the opening 18 of back supporting and mobile first an axial flow F1 between cooling fin 4 in the upper wall that directly axially passes cover 2.
[30] second air stream F2 are produced by parapet 20, and parapet 20 passes a part each opening 14 inhaled airs bias current radially outward of cover.The F2 that flows passes through on the upper surface of radiator 1, therefore on positive diode 2, pass through, so that in the annular space between cover 12 and radiator 1, axially flow subsequently, then in the space between radiator 1 and back supporting 6 along the direction Radial Flow of machine shaft, under the effect of the 3rd mobile F3, pass the opening 18 in the supporting of back then, the 3rd mobile F3 enters by the side opening 16 of cover 12, and Radial Flow is converged with mobile F2 in the space between the upper surface of the lower surface 23 of radiator 1 and supporting 6.
[31] it is pointed out that connector 9 is positioned on the radiator 1, so that make the F2 that flows obtain a good radial passage.Radiator 1 on the one hand relative connector 9, the position of bearing 6 is also very important relatively on the other hand.Verified, when observing relation of plane, obtain best location:
[32]0.85＜D2/D1＜1.25
[33] wherein, D1 is the distance between the upper surface of connector 9 and radiator 1, and D2 is the distance between the lower limb of the upper surface of back supporting 6 and the prolongation 23 of cooling fin 4 below radiator 1.
[34], can even a part is passed the air bias current that upper shed 14 axially enters, this part air radially be passed through by its effect of its Shape optimization of fine selection, so that cooling radiator or positive radiator about parapet 20.Should be passed above the cover the mobile F3 that the side opening 16 to the space between back supporting and the radiator enters at the mobile F2 beyond machine on the positive radiator then inwardly shifts onto below the radiator.The part of blade 22 below radiator also guarantees better cooling.
[35] it is pointed out that the space between the part is optimised for mobile F3, make the load loss in the machine reduce to minimum.In fact, load loss is more little, and the speed of cool stream is big more, and perhaps the part cooling rate is fast more.Therefore advantageously select D2 greater than D1.
[36] also it is pointed out that can be by suitably determining the cooling of the dimensionally-optimised negative diode of the super thickness portion 22 of truncated cone shape.In fact, these super thickness portions can increase the heat exchange area between back supporting and the air, and realize the effect of cooled blade forming the obstruction to flowing simultaneously when load loss takes place by convection current.
[37] for example, alternating current generator for 2.5-3 kilowatt, for the thickness e=5mm+2 of back supporting and-1mm, selecting the minimum value of the width l among Fig. 2 B is 1.5mm, so that there are enough materials to pass through heat loss through conduction, maximum is 3mm, so that reduce load loss, obtains the optimization between the load loss of heat dissipation capacity and cooled flow like this.By the same token, height h should can also optimize axial dimension like this between 2mm-4mm.For the slope of taper, can form following best relation:
[38]1＜h/l＜5
[39] wherein, h is the height of the upper surface of the super thickness portion of truncated cone shape to the supporting upper surface, and it constitutes the horizontal range between the Origin And Destination of inclined-plane P.
[40] according to another principal character of the present invention, the shape and the heat exchange area of radial blade 4 are optimized, so that obtain best cooling in the volume of a minimum.Fig. 4 A-4D illustrates three kinds of possible shapes of these blades.The exterior contour that it is pointed out that positive radiator and possible parapet can be undulatory, makes the radially extension of blade different.
[41] particularity of blade embodiment shown in Fig. 4 A is that blade is very thin.The characteristics of the embodiment of Fig. 4 B and 4D are that blade is triplets, and outer leafs is connected to each other by a sealing parapet 26.Fig. 4 C also advocates the combination of blade, but is with quaternate form, and there is a continuous connection parapet 28 end of every group of outer leafs.The advantage of Fig. 4 A-4D will be described below.
[42] have been found that the axially open of blade face, so that by maximum thermal exchange area and minimizing load loss optimization cooling to cover and supporting.
[43] Fig. 3 illustrates another embodiment of rectifying device of the present invention.Among Fig. 3, to using identical reference number with identical or similar part of the embodiment of Fig. 1 and element.The characteristics of Fig. 3 embodiment are that connector 9 supports between 6 at positive radiator 1 and back, can install positive and negative diode (not shown) to pin ground by head like this.
[44] Fig. 5,6 illustrates another embodiment of rectifying device of the present invention.The characteristics of this embodiment are that the F2 that flows enters by the special openings 30 in the cover 12 bottom upper walls of positive diode 2 tops, along the upper and lower Surface runoff of radiator 1, and by convection current cooling radiator 1.One does not have the annular region 31 of opening that opening 30 and opening 14 are separated, and annular region 31 axially is positioned on the parapet 20 substantially machine.As shown in Figure 6, opening 30 and opening 14 be the same to be arranged in a circular arc zone, and this circular arc zone is regional coaxial with opening 14, and radially beyond the zone of opening 14.
[45] in addition, it is found that in the embodiment of Fig. 5, the upper surface of back supporting 6 is not installed the super thickness portion of truncated cone shape of negative diode 7.It is planar upper surface that these diodes are installed in of supporting.At last, finish near radial blade 4 this surface the lower surface 23 of positive radiator 1.Therefore, blade does not have the part below radiator shown in Figure 1.But, it is to be noted that the consideration of making above about distance D 1 and D2 stands good in the embodiment of Fig. 5.
[46] another advantage of rectifying device of the present invention is easy assembling.In fact, by the top of different parts, promptly pile up and realize assembling from the outside along machine.Can assemble afterwards earlier like this and support, then the back supporting is installed on the other parts of machine.Equally, diode inserts to same direction, and the afterbody of diode all makes progress, and can only use a welder like this, and the transfer of cancellation part.In addition, the position of diode makes and has only a welding plane.The design of part position makes the heaviest as close as possible fixture of part, and is outstanding to limit.So better reliability can be arranged, and make vibration and resonance frequency the highest, with the sharp magnetic noise of the magnetic force of avoiding machine generation.
[47] last, rectifier bridge can be divided into three-phase or six phases.Because volume is little, rectifying device also can be used to have the rectifier bridge of six diodes or eight diodes (three-phase and rectification intermediate axle) or 12 diodes (be six mutually or three-phase) under the situation of an extreme heat.
[48] certainly the present invention is made many improvement, as described in the figure and illustrate.For example, parapet can have any other suitable shape, and there is different selections the position of opening, and condition is to guarantee to produce cool stream F1-F3.
[49] this device advantageously is provided on the alternating current generator of describing among the FR-0104770 (publication number is FR-A-2820896-and FR-A-2819117) of application on April 5 calendar year 2001.For more accurate, can be with reference to these documents, these documents have introduced that a kind of alternator rotor carries and near back supporting mounted fan.In the document, stator has one between forward and backward supporting and form the main body of shell.This main body is made of one group of sheet material, sheet material some grooves are arranged in interior week, some rod conductive pieces are installed in the groove, these conducting elements reticulate outside stator body, their free end is connected with connector 9.Advantageously for having a head and global shape is the hair clip of U-shaped, two branches are connected between the hair clip shape of these bars, the zone that the free end of branch forms and other hair clip is connected with branch.Head is installed near the supporting of back.In addition, the claw rotor of machine has 7 pairs of utmost points; The external diameter of the cylindrical body of stator at 132mm between the 138mm.
Therefore [50] see a stator 200 at Fig. 7, its main body 201 has hair clip 202, and for the groove that the branch that makes hair clip 202 that stator body has passes through is shown, hair clip 202 does not all illustrate.The head of hair clip forms a chignon (chignon) outside stator body 201, and near the back supporting that Fig. 8 can better see.Can see, export 203 mutually and be fixed on the connector 9.
[51] head of hair clip 202 is positioned at outside the aft-fan 300, fan is centrifugal at this, back axial end by claw rotor 400 carries, and another axial end of claw rotor 400 has a forefan 301 near preceding supporting (cannot see from alternating current generator).
[52] front portion of hair clip 202 has some to be welded on the outer part of stator body, and their layout is in order to form the phase coil that above-mentioned document is pointed out.
[53] four of hair clip branches install by groove.
[54] rotor 400 has the utmost point wheel 401,402 of two band pawls, and the excitation variable winding that rotor has is installed between their platform.
[55] this rotor has 7 pairs of utmost points in a manner described; When powering to excitation variable winding, these claw types become magnetic pole.
[56] can see the rectifying device relevant with stator from stereogram 8 with the rotor of Fig. 7.Among this figure,, rectifying device is extracted for the electric rail of connector 9 is shown.
[57] see in the figure with 500 represent be used for the binding post B+ and the radial blade 4 that are connected with the binding post of automobile batteries.These blade radials extend, and guide flowing of cooling fluid, are axial.
[58] supporting 6 is hollow after, and its plate shape bottom has the negative diode of Fig. 1, and its axial ring edge 161 has the outlet 162 that aft-fan 300 passes the air intake 18 suction air of supporting 6 bottoms, back.Edge 161 surrounds the head of fan 300 and hair clip 202.
[59] can also see alternating current generator is fixed on fixed arm or fixed claw 163 on the automobile part.
[60] in addition, an insulator is between the edge of conducting element and groove.In one embodiment, this insulator is installed in the groove, in the front of conducting element.Advantageously improved the power of alternating current generator for the rod conducting element of rectangle by the cross section.Rectifying device of the present invention is applicable to this alternating current generator.Can improve the power of rotor by device of the present invention, rotor has a moulding excitation variable winding in one embodiment, and as the FR-0006853 of application on May 29 calendar year 2001, stator surrounding has the rotor of pawl usually.This rotor has some annulars that are connected with the end points of rotor coil, and these annulars are used to make the brush friction of electric rail and brush support, and brush supports and is connected with voltage regulator.
[61] because positive radiator obtains by molded, it is provided with a large amount of thin cooling fins 4 (Fig. 4 A) that radially extend to the axle 1 of alternating current generator.These cooled blades radially and in parallel with the axle of the machine simultaneously plane extend at one.Simultaneously make radiator that very large heat exchange area be arranged, therefore compensated the shortage in place, alternating current generator rear portion at the blade that very big extension axially and is radially arranged.A large amount of slim vane can make radiator of the present invention be used for the big current rectifier assembly of 12 diodes of needs, and promptly in the rectifier bridge, six diodes are on positive radiator, and six diodes are on negative heat sink.
[62] still, because blade 4 radially extends, the end of adjacent blades 4 is very close to one another.The close shortcoming of blade end is that the mould between the blade is very fragile, and it is also very fragile to be used to remove the cutting tool of burr between these blades.On the other hand, the radius of vane tip is especially little.Peeling off of needing during the part demoulding more increased the weight of this point.Therefore exist the model filling bad and make aluminum precipitation model should the place danger.Fragility during vane operation also joins in these problems.
[63] Fig. 4 B and 4C illustrate two kinds of solutions of the problem that proposes above.Improve among the embodiment at one of the positive radiator of Fig. 4 A, the blade triplets, and the end of two outer leafs of every group connects together, and therefore produce connecting rod 26, and center vane keeps free.In the embodiment shown in Fig. 4 C, different connecting rods gather together, and form a continuous connection parapet that extends between two outmost blades.
[64] Fig. 4 D illustrates the possibility that realizes the cleaning tail 74 be connected with connecting rod, filling condition that like this can Optimization Model.Remove these after the molded operation and clean tail 74, therefore can obtain very thin connecting rod.
[65] the positive radiator of describing just now has many advantages.All embodiment that introduce have many thin big significant advantage of the heat exchange area that cooled blade had.Because the shape of radiator is a single plank, blade can be distributed on the almost whole radially inward edge of radiator regularly.
[66] advantages that have some to replenish according to the improved positive radiator of Fig. 4 A-4D are solid as the injection tool between the blade, mutually between unconnected vane tip radius increase, it is bad and make the danger of aluminum precipitation in this place of model to have reduced the model filling like this; Eliminated the minor radius of interconnected blade end, it is bad and make the danger of aluminum precipitation in this place of model that this helps to eliminate the model filling.Therefore better model filling condition is arranged.Air stream is directed to the efficient that interconnected vane region guarantees to improve by Venturi-tube action radiator.The danger of radiator destruction when reducing operation, and the noise of reduction blade resonance generation by connecting rod or the assurance of connection parapet reinforcing radiator.Also it is pointed out that such volume that has increased aluminium under the same volume, therefore make radiator that better efficient be arranged in transitional face.
Claims (14)
1. the rectifying device that is used for electric rotating machine, described rectifying device comprises a plurality of positive diodes by a plate shape seat supports, a plurality of negative diodes that support a plate shape seat supports that has by a back, one just makes, the connector (9) that negative diode is electrically connected and one produces along the fan that forces stream of the cooling fluid of machine axial flow, the bearing of positive diode has cooled blade towards the front surface of machine shaft, described blade in the described axial flow of cooling fluid along the radially extension of machine
It is characterized in that described rectifying device has the mixing cooling device of the negative diode bearing that is undertaken by convection current and conduction; Described rectifying device has the device that cools off the bearing (1) of positive diode (2) by the radial flow of a cooling fluid (F2).
2. rectifying device as claimed in claim 1, it is characterized in that, this rectifying device is covered by a cover (12), the lateral openings (16) that cover (12) has second radial flow (F3) of cooling fluid to enter at negative diode (7) the bearing place of back supporting (6), second radial flow (F3) of described cooling fluid is passing through on the upper surface of supporting that negative diode (7) is housed under the effect of cooling fluid axial flow (F1).
3. rectifying device as claimed in claim 2 is characterized in that, negative diode supports in the super thickness portion in part (22) of (6) upper surface after being installed in machine.
4. rectifying device as claimed in claim 3 is characterized in that, super thickness portion is a truncated cone shape, and negative diode (7) is installed in the upper surface of super thickness portion.
5. rectifying device as claimed in claim 4 is characterized in that, the device that the radial flow (F2) by cooling fluid cools off has the opening (14,30) that is located on the shell wall, and shell covers vertically extending this device of axle with machine.
6. rectifying device as claimed in claim 5, it is characterized in that, the device of a part of bias current that the axial flow (F1) that makes cooling fluid is arranged on the edge of machine shaft of the bearing (1) of positive diode (2) is installed in the radial flow (F2) that passes through on the upper surface of bearing (1) wherein so that produce from positive diode (2).
7. rectifying device as claimed in claim 6 is characterized in that, the bearing (1) that the radial flow of cooling fluid (F2) is driven at positive diode (2) is mobile with the direction of lower edge machine shaft, so that converge with the axial flow (F1) of cooling fluid.
8. rectifying device as claimed in claim 7 is characterized in that, the radial flow of cooling fluid (F2) is driven by second radial flow (F3) of cooling fluid radially to the Radial Flow of machine shaft under the bearing (1) of positive diode (2).
9. rectifying device as claimed in claim 5, it is characterized in that, the device that cools off by radial flow (F2) has an element at the bearing (1) of positive diode (2) on the edge of machine shaft, this element in the axial flow (F1) of cooling fluid and the direction that enters opening (14,30) between the radial flow (F2) from the bearing projection.
10. rectifying device as claimed in claim 1, it is characterized in that, the bearing (1) of positive diode (2) is positioned between connector (9) and the back supporting (6), make it and support the distance (D2) of (6) and the ratio of the distance (D1) of it and connector (9) between 0.85 to 1.25.
11. rectifying device as claimed in claim 10 is characterized in that, the ratio of described distance is greater than 1.
12. rectifying device as claimed in claim 3 is characterized in that, the relation between the load loss that the radiating block that the super thickness portion (22) of installation negative diode (7) constitutes and these super thickness portions produce can be optimized by the size of adjusting super thickness portion.
13. rectifying device as claimed in claim 9 is characterized in that, the opening in the covering wall of shell (12) has along the inlet (30) of the radial flow (F2) of the inlet (14) of the axial flow (F1) of the cooling fluid that radially is arranged side by side of machine and cooling fluid.
14. rectifying device as claimed in claim 13 is characterized in that, the axial flow of cooling fluid (F1) and radial flow (F2) above-mentioned inlet (14,30) by of shell be positioned on the parapet (20) annular aporate area (31) separately.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0109482 | 2001-07-16 | ||
| FR0109482A FR2827437B1 (en) | 2001-07-16 | 2001-07-16 | CURRENT RECTIFICATION ARRANGEMENT FOR ROTATING ELECTRIC MACHINES, ESPECIALLY ALTERNATORS FOR MOTOR VEHICLES |
| FR0109477A FR2827435B1 (en) | 2001-07-16 | 2001-07-16 | CURRENT RECTIFICATION ARRANGEMENT FOR ROTATING ELECTRIC MACHINES, ESPECIALLY ALTERNATORS FOR MOTOR VEHICLES |
| FR0109477 | 2001-07-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1465125A CN1465125A (en) | 2003-12-31 |
| CN1283036C true CN1283036C (en) | 2006-11-01 |
Family
ID=26213100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028023927A Expired - Lifetime CN1283036C (en) | 2001-07-16 | 2002-07-16 | Current rectifier assembly for rotating electrical machines, in particular motor vehicle alternator |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7019424B2 (en) |
| EP (2) | EP2843811B1 (en) |
| JP (1) | JP4106325B2 (en) |
| KR (1) | KR100925299B1 (en) |
| CN (1) | CN1283036C (en) |
| BR (1) | BR0205758A (en) |
| MX (1) | MXPA03002267A (en) |
| WO (1) | WO2003009452A1 (en) |
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| DE102004032374A1 (en) * | 2004-06-30 | 2006-01-26 | Robert Bosch Gmbh | Diode mounting to act as a current redresser's heat sink for rotary current generators has an opening for holding a diode as well as reference and diode-base surfaces |
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| JP4693385B2 (en) * | 2004-09-29 | 2011-06-01 | 三菱電機株式会社 | AC generator for vehicles |
| KR20060063278A (en) * | 2004-12-07 | 2006-06-12 | 한국델파이주식회사 | A shape of insertion hole of a heatsink for assembling diodes of an alternator for a vehicle |
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| FR2886477B1 (en) * | 2005-05-31 | 2007-07-06 | Valeo Equip Electr Moteur | SIGNAL INTERCONNECTION PIECE FOR ROTATING ELECTRICAL MACHINE |
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| FR2886482B1 (en) * | 2005-05-31 | 2011-03-25 | Valeo Equip Electr Moteur | DISSIPATOR FOR ELECTRONIC COMPONENTS OF A ROTATING ELECTRIC MACHINE |
| FR2886506B1 (en) * | 2005-05-31 | 2011-02-25 | Valeo Equip Electr Moteur | ELECTRONIC MODULE FOR ROTATING ELECTRICAL MACHINE |
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| FR2919769B1 (en) | 2007-07-30 | 2015-07-10 | Valeo Equip Electr Moteur | PROTECTIVE COVER FOR FIXING BY CLOSING ON A FLANGE OF A ROTATING ELECTRIC MACHINE AND ROTATING ELECTRIC MACHINE COMPRISING SUCH A COVER |
| FR2927737B1 (en) | 2008-02-18 | 2019-03-22 | Valeo Equipements Electriques Moteur | ROTATING ELECTRIC MACHINE BEARING AND ROTATING ELECTRIC MACHINE COMPRISING SUCH A BEARING |
| JP5318695B2 (en) * | 2009-08-07 | 2013-10-16 | 株式会社マキタ | Tabletop cutting machine |
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| FR2954016B1 (en) | 2009-12-11 | 2017-05-05 | Valeo Equip Electr Moteur | CURRENT RECTIFIER MODULE FOR ROTATING ELECTRIC MACHINE AND ROTATING ELECTRIC MACHINE COMPRISING SUCH A MODULE |
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| TWM407546U (en) * | 2010-11-11 | 2011-07-11 | Victory Ind Corp | Improved structure of heat sink module |
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| FR2969410B1 (en) | 2010-12-20 | 2012-12-28 | Valeo Equip Electr Moteur | VOLTAGE REGULATING DEVICE FOR A ROTATING ELECTRIC MACHINE, BEARING OF SUCH A MACHINE EQUIPPED WITH SUCH A DEVICE AND SUCH A MACHINE COMPRISING SUCH A BEARING |
| FR2978885B1 (en) | 2011-08-05 | 2015-11-13 | Valeo Equip Electr Moteur | CONNECTOR, CURRENT RECTIFIER DEVICE PROVIDED WITH SUCH A CONNECTOR AND ELECTRIC MACHINE EQUIPPED WITH SUCH A RECTIFIER DEVICE |
| FR2978884B1 (en) | 2011-08-05 | 2014-09-12 | Valeo Equip Electr Moteur | CONNECTOR, CURRENT RECTIFIER DEVICE PROVIDED WITH SUCH A CONNECTOR AND ELECTRIC MACHINE EQUIPPED WITH SUCH A RECTIFIER DEVICE |
| US9647303B2 (en) | 2012-04-20 | 2017-05-09 | National Institute Of Clean-And-Low-Carbon Energy | Energy storage system preventing self from overheating, a method for preventing energy storage system from overheating and a method for forming a heat dissipation coating on energy storage system |
| WO2013155701A1 (en) * | 2012-04-20 | 2013-10-24 | 北京低碳清洁能源研究所 | Energy storage system preventing self from overheating and method for preventing energy storage system from overheating |
| FR3010588B1 (en) | 2013-09-09 | 2015-10-09 | Valeo Equip Electr Moteur | PROTECTIVE COVER FOR ROTATING ELECTRIC MACHINE FOR MOTOR VEHICLE |
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| FR3018013B1 (en) * | 2014-02-26 | 2018-01-12 | Valeo Equipements Electriques Moteur | ELECTRONIC ASSEMBLY FOR ROTATING ELECTRIC MACHINE FOR MOTOR VEHICLE |
| WO2016079867A1 (en) | 2014-11-21 | 2016-05-26 | 三菱電機株式会社 | Ac generator for vehicles |
| DE102014226579A1 (en) * | 2014-12-19 | 2016-06-23 | Robert Bosch Gmbh | Protective cap for an electric machine, in particular for an alternator |
| CN107534350B (en) * | 2015-04-28 | 2019-04-19 | 三菱电机株式会社 | Rotating electric machine |
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| FR3086126B1 (en) * | 2018-09-14 | 2021-10-15 | Valeo Equip Electr Moteur | ROTATING ELECTRIC MACHINE WITH IMPROVED ELECTRONICS COOLING |
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-
2002
- 2002-07-16 CN CNB028023927A patent/CN1283036C/en not_active Expired - Lifetime
- 2002-07-16 EP EP14188159.9A patent/EP2843811B1/en not_active Expired - Lifetime
- 2002-07-16 MX MXPA03002267A patent/MXPA03002267A/en active IP Right Grant
- 2002-07-16 WO PCT/FR2002/002542 patent/WO2003009452A1/en active Application Filing
- 2002-07-16 BR BR0205758-1A patent/BR0205758A/en not_active Application Discontinuation
- 2002-07-16 EP EP02764991.2A patent/EP1407527B1/en not_active Expired - Lifetime
- 2002-07-16 KR KR1020037003803A patent/KR100925299B1/en active IP Right Grant
- 2002-07-16 US US10/363,545 patent/US7019424B2/en not_active Expired - Lifetime
- 2002-07-16 JP JP2003514685A patent/JP4106325B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP2843811A1 (en) | 2015-03-04 |
| CN1465125A (en) | 2003-12-31 |
| WO2003009452A1 (en) | 2003-01-30 |
| KR20040028610A (en) | 2004-04-03 |
| EP2843811B1 (en) | 2016-06-08 |
| MXPA03002267A (en) | 2003-07-21 |
| JP2005509390A (en) | 2005-04-07 |
| BR0205758A (en) | 2003-07-22 |
| JP4106325B2 (en) | 2008-06-25 |
| US7019424B2 (en) | 2006-03-28 |
| EP1407527A1 (en) | 2004-04-14 |
| EP1407527B1 (en) | 2014-11-12 |
| KR100925299B1 (en) | 2009-11-04 |
| US20030178899A1 (en) | 2003-09-25 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20061101 |
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| IP01 | Partial invalidation of patent right | ||
| IP01 | Partial invalidation of patent right |
Commission number: 4W113682 Conclusion of examination: Declaration of partial invalidity of invention patent right 02802392.7, continuing to maintain the validity of this patent on the basis of claim 7 submitted by the patentee on April 1, 2022 Decision date of declaring invalidation: 20220817 Decision number of declaring invalidation: 57812 Denomination of invention: Current rectification device for rotating motors Granted publication date: 20061101 Patentee: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR |